CONDENSED CONSOLIDATED BALANCE SHEET - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 10,730	$ 8,489
Restricted cash	16,372	13,974
Accounts receivable, net	218,744	244,952
Inventories	92,545	107,359
Regulatory assets	86,618	136,009
Prepaid expenses and other	23,327	28,041
Total current assets	448,336	538,824
Property, plant, and equipment, net	5,702,670	5,657,480
Goodwill	357,586	357,586
Regulatory assets	724,441	716,570
Other noncurrent assets	47,961	47,323
Total Assets	7,280,994	7,317,783
Current Liabilities:
Current maturities of finance leases	3,155	3,098
Current portion of long-term debt	244,382	144,525
Accounts payable	104,757	201,498
Accrued expenses and other	308,620	250,579
Regulatory liabilities	19,767	21,145
Total current liabilities	680,681	620,845
Long-term finance leases	7,996	8,799
Long-term debt	2,340,588	2,474,357
Deferred income taxes	541,321	538,983
Noncurrent regulatory liabilities	659,189	654,213
Other noncurrent liabilities	358,219	355,403
Total Liabilities	4,587,994	4,652,600
Commitments and Contingencies (Note 10)
Shareholders' Equity:
Common Stock, Value, Issued	633	633
Treasury stock at cost	(98,471)	(98,392)
Paid-in capital	2,002,839	1,999,376
Retained earnings	795,903	771,414
Accumulated other comprehensive loss	(7,904)	(7,848)
Total Shareholders' Equity	2,693,000	2,665,183
Total Liabilities and Shareholders' Equity	$ 7,280,994	$ 7,317,783
Preferred Stock, Shares Issued	0
Common Stock, Par or Stated Value Per Share	$ 0.01
Common Stock, Shares Authorized	200,000,000
Common Stock, Shares, Issued	63,326,346
Common Stock, Shares, Outstanding	59,793,691
Preferred Stock, Par or Stated Value Per Share	$ 0.01
Preferred Stock, Shares Authorized	50,000,000
Preferred Stock, Shares Outstanding	0